Prior to our existence, police and emergency vehicle production was often times inconsistent and inefficient. Equipment often passed out of manufacturers' warranties before vehicles were completed and available for police work.
We began with five...

Developing the Patrol Power System
In the late 90’s, Auto Additions team members sought to develop consistent ways to provide an isolated power source for the accessories installed in law enforcement vehicles, while also maintaining consistent...

Decatur Electronics, Inc. is a manufacturer of speed measurement radar products, radar/message trailers, and in-car video for a wide range of applications including use by law enforcement, sports entities, and industrial applications. We are the oldest...